A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 9548424 can be evenly divided by 1 2 3 4 6 8 9 12 17 18 24 29 34 36 51 58 68 72 87 102 116 136 153 174 204 232 261 269 306 348 408 493 522 538 612 696 807 986 1,044 1,076 1,224 1,479 1,614 1,972 2,088 2,152 2,421 2,958 3,228 3,944 4,437 4,573 4,842 5,916 6,456 7,801 8,874 9,146 9,684 11,832 13,719 15,602 17,748 18,292 19,368 23,403 27,438 31,204 35,496 36,584 41,157 46,806 54,876 62,408 70,209 82,314 93,612 109,752 132,617 140,418 164,628 187,224 265,234 280,836 329,256 397,851 530,468 561,672 795,702 1,060,936 1,193,553 1,591,404 2,387,106 3,182,808 4,774,212 and 9,548,424, with no remainder.
Since 9,548,424 cannot be divided by just 1 and 9,548,424, it is not a prime number.